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BIOS iMac 820-01237-A

Ďuring OS updation system was shutdown after few minutes when i tried to powering on then system is on but no display . We have diagnose the BiOS file was corrupted . We have tried another BIOS then display come but that BIOS is FirmWare Locke
 

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820-01237 og.BIN
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Hemantgupta_10 said:
Ďuring OS updation system was shutdown after few minutes when i tried to powering on then system is on but no display . We have diagnose the BiOS file was corrupted . We have tried another BIOS then display come but that BIOS is FirmWare Locke
Click to expand...
so you need to use a different BIOS
 
We have used Above mention BIOS . Display is coming. After that We installed the Mac OS Catalina. Installation completed and then showing below attached error and machine not booting
 

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IMG_8852.jpg
Hemantgupta_10 said:
We have used Above mention BIOS . Display is coming. After that We installed the Mac OS Catalina. Installation completed and then showing below attached error and machine not booting
Click to expand...
this is problem hardware and MAC OS

you can try test hardware like this
vinafix.com

How to Use Apple Hardware Test to Diagnose Mac Problems

How to Use Apple Hardware Test to Diagnose Mac Problems One of the definitive ways for an average user to determine if their Mac has a hardware problem is to run Apple Hardware Test or Apple Diagnostics, which is what we’re going to show you how to do in this tutorial. Yes, most Mac users...
vinafix.com vinafix.com
 
Если я дам вам свой дамп bios imac 2019 model A2115, можете ли вы удалить с него пароль EFI?
 
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